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WHO(1)                  FreeBSD General Commands Manual                 WHO(1)

NAME
     who - display who is logged in

SYNOPSIS
     who am I
     who [file]

DESCRIPTION
     The who utility displays a list of all users currently logged on, showing
     for each user the login name, tty name, the date and time of login, and
     hostname if not local.

     Available options:

     am I  Returns the invoker's real user name.

     file  By default, who gathers information from the file /var/run/utmp.
           An alternate file may be specified which is usually /var/log/wtmp
           (or /var/log/wtmp.[0-6] depending on site policy as wtmp can grow
           quite large and daily versions may or may not be kept around after
           compression by ac(8)).  The wtmp file contains a record of every
           login, logout, crash, shutdown and date change since wtmp was last
           truncated or created.

     If /var/log/wtmp is being used as the file, the user name may be empty or
     one of the special characters '|', '}' and '~'.  Logouts produce an
     output line without any user name.  For more information on the special
     characters, see utmp(5).

FILES
     /var/run/utmp
     /var/log/wtmp
     /var/log/wtmp.[0-6]

SEE ALSO
     last(1), users(1), getuid(2), utmp(5)

HISTORY
     A who command appeared in Version 1 AT&T UNIX.

FreeBSD 11.0-PRERELEASE        December 30, 1993       FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | HISTORY

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